During the last week the Chandra observing schedule was interrupted by
an entry to Bright-Star Hold mode (BSH) at 3:24am on Sunday, Aug 21
due to the failure to acquire the commanded stars in the aspect camera
at the end of a maneuver. The entry into BSH was nominal and an
assessment of the telemetry indicated that all spacecraft hardware was
performing nominally. The most-likely cause for failing to acquire
stars is that a gyro-bias excursion occurred during the maneuver,
which resulted in a maneuver error that placed the commanded
acquisition stars outside of their search boxes. An analysis of star
data during BSH transition indicated that the error was ~126 arcsec,
which is consistent with previously seen gyro bias excursions.
Real-time procedures were executed on Aug 21 to recover from
BSH. Loads for a replanned schedule were uplinked on Aug 22 with
75.9ks of science loss. Observations of CODEX 25953, M81 N, and fcc47
were impacted by the interruption and will be rescheduled.

A real-time procedure was executed on Aug 25 to uplink a flight
software patch that increases the HRMA average maximum temperature
thermal health-check threshold. This update is in response to
increasing temperatures due to degradation of the Observatory's
thermal covers during the mission and will reduce the possibility of
an unnecessary swap to redundant thermal control hardware due to
environmental heating.

The schedule of targets for the next week is shown below and includes
an observation of M82 offset 1 coordinated with NuSTAR and on
observation of 2MASS J06022918+4951561 coordinated with ground-based
observatories.